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POLAKU2002

tv buntz 1707

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buna ziua.tv made in china cu un singur procesor, cu 3dd functioneaza 1 minut dupa care dispare imaginea,dar inalta functioneaza mai departe,am marig g2 nu se vede nimik,ce am notat ca scade enorm alimentarea pe finalii video de la 175 la 75v! sa fie traful de linii?

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tranzistorul final linii e cald ?pune un bec intre colector si traf ....daca ai pe bec mai putin de jumatate din tensiunea de alimentare sigur e traful .....dar totusi ma fa ceva masuratori pana a aschimba traful

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Sunet aveti ?? >>Schimbati electroliticii din sursa si incercati sa scrieti o memorie noua cu un dump adecvat !!

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Daca ar fi traful finalul linii se supraincalzeste.Verifica asta.Eu as pune osciloscopul in baza driver sa vad daca exista diferente.

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buna ziua.tv made in china cu un singur procesor, cu 3dd functioneaza 1 minut dupa care dispare imaginea,dar inalta functioneaza mai departe,am marig g2 nu se vede nimik,ce am notat ca scade enorm alimentarea pe finalii video de la 175 la 75v! sa fie traful de linii?

Sigur merge finalul linii cand se intuneca!?! Filament este atunci?

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Ce ar fi sa pui un bec si sa verifici mai intai stabilitatea sursei ?

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o sa verific a 1015 sa vad...din cite inteleg eu s-ar putea sa fie ceva legat de sursa...ma duc sa o pun pe un bec...nu gasesc nici un a1015...ci multi c1815 si c2383...

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am gasit si inlocuit 1015...am pus bec si tensiunea scade la 78v.am verificat electrliticii de pe b1 si sunt ok.

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